Grand seiko watch spring drive divers sbga031 is a diving watch made of high intensity titanium it features grand seikos unique spring drive technology this timepiece is equipped with 9r65 automatic calibre that has 30 bearing jewels the watch is protected from water penetration and magnetic influences it features a 72 hour power reserve and a power reserve indicator a date window is positioned at the 3 o clock mark this diving watch comes with a uni directional elapsed time bezel that ca